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1.56 Photochromic Bifocal Transition Lenses Blank , Semi Finished Round Top Bifocal Lens
Home » Products » Semi Finished Lens » SF Photochromic Lens » 1.56 Photochromic Bifocal Transition Lenses Blank , Semi Finished Round Top Bifocal Lens
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1.56 Photochromic Bifocal Transition Lenses Blank , Semi Finished Round Top Bifocal Lens

  • Semi finished Photochromic Bifocal
  • Aogang
  • 9001509900
  • 1.56
  • 70/28mm
  • NK55, imported from Japan
  • 42
  • 1.15
  • > 97%
  • UC, HC, HMC
  • Base: 2/4/6/8 ADD; +1.00~+3.50
Quantity:

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Technical Data

1.56 Semi Finished Photochromic Round Top Lens(Brown/Gray)

Material: 1.56 Index Resin(Ne=1.56, Abbe=42, Specific Gravity=1.15)

Segment Placement=5mm down~5mm

Add Power: +1.00 to +3.50 in 0.25D steps

Segment Size=28mm

1.56 Photochromic Bifocal Transition Lenses Blank , Semi Finished Round Top Bifocal Lens

 

CONVEX SURFACE CONCAVE SURFACE


Mominal Curve True Curve

Sag

(sagitta: 40mm)

Radius Radius CT(mm) ET(mm) Dia(mm)
1.549
2.00






70
4.00 4.17
1.50 131.74 132.50 8.0 8.0
6.00 6.35
2.30 86.45 88.80 8.0 7.0
8.00







Product Features

RT-28 Photochromic lenses are clear indoors and transition to dark reading sunglasses within 28 seconds outdoors. Designed for multi-purpose, they allow you to see as you would normally in the distance and yet you simply lower your eyes to read. Indoors you can read a book and won’t have to take them off to see your friend across the room. Outdoors they protect your eyes from U.V. and bright light while allowing you to read and enjoy the view simultaneously. One pair to wear for everywhere and for every activity: at work or home, inside or outside, see far and see up close.

 

1.56 Photochromic Bifocal Transition Lenses Blank , Semi Finished Round Top Bifocal Lens

----Why Go For Photochromic RT-28 Bifocal Lenses?

 

If you choose photochromic bifocal lenses -

  1. You do not have to carry along with you, a separate pair of eyeglasses with bifocal lenses

  2. You can easily read a book when indoors and do not need to take them off when stepping out

  3. When you are under the sun, they protect your eyes from bright light and UV rays, allowing you to read and view clearly at the same time

Generally speaking, if you wear prescription eyeglasses, it is a good idea to opt for photochromic bifocal or photochromic progressive lenses. Because they not only shield your eyes from the harmful rays of the sun but also provide you with a seamless and comfortable vision for different areas.


Coating Choice

1.56 Photochromic Bifocal Transition Lenses Blank , Semi Finished Round Top Bifocal Lens

  • Hard coating(HC): Enhancing the hardness of the lens to prevent the substrate scratch

 

  • Hard multi coating(HMC/ AR): Protecting the lens effectively from reflection, enhancing functional and charity of your vision

 

  • Super hydrophobic coating(Crizal coating/ SHMC):Making the lens waterproof, antistatic, anti slip and oil resistance


Contact Us

contact us

QUICK LINKS

CONTACT

Add: East Of Nongganxiao, Situ Town, Danyang City, Jiangsu Province, China

Tel:+86-511-86550315
Phone No: +86 18796035231
Fax: +86-511-86555316
Email: admin@ag-optical.com.cn
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